432 



THE INDIA RUBBER WORLD 



METHOD AND APPARATUS FOR MAKING BICYCLE TIRES. 



The object of the improvement of the means and method for 

 forming pneumatic tires, particularly single tube bicycle tires, 

 is the elimination of sharp bends in the fabric at the point where 



it passes over the 

 valve cot and the 

 perfection of the 

 adhesion between 

 the head of the 

 valve cot and the 

 material forming 

 the tire. The tire 

 is built upon the 

 drum A which 

 has a diam- 

 eter substantially 

 equal to the inner 

 diameter of the 

 lire to be produced, and having an axial slot B adapted to give 

 clearance for the valve cot. The tire forming materials of rub- 

 berized fabric and uncured rubber C arc laid circumferentially on 

 the drum and folded into tubular form over a spacing strap D 

 provided with a handle for convenience. 



.\s the layers are folded, the material is tightly sealed with a 

 hand tool and the strap drawn along. The last few inches of 

 the circumference of the tire is folded without the spacing strap 

 and pressed without backing. 



.-V spheroidal depression is provided in the strap, into which 

 the head of the valve cot and the fabric covering it may sink. 

 This permits any desired amount of pressure being exerted by 

 the hand tool around the valve cot without danger of bending 

 the fabric layers at this point and ensures more perfect adhesion 

 between valve cot and fabric. (Joseph A. Bowerman, assignor 

 to The Fisk Rubber Co. — both of Chicopee Falls, Massachusetts. 

 United States patent No. 1,327,802.) 



OTHER MACHINERY PATENTS. 

 THE UNITED STATES. 



N 



g table. L. B. Pierson, assigno 

 -both of Chicopee Falls, Mass. 

 trimming rubber hose. F. C. Mt 



The 



1.329,849. Tire-tri 

 Fisk Rubber 

 330,383. Machine 

 ton, O. 

 330,595. Apparatus and method for removing toy balloons 

 etc. W. G. Lerch, assignor to The Miller Rubl 

 of Akron, O. _ 



330,785. Mandrel for tire tubes. D. A. Clark and C. E. Lowe, assignors 

 to The Republic Tool and Manufacturing Co.— all of Cleve- 

 land, O. 

 330,886. .Apparatus for applying hard rubber to tire foundation bands. 



-both 



'f\' Macbeth and 'E.°SuiVivan, Birmingham, assignors to The 

 Dunlop Rubber Co., Limited, Westminster, London — both in 

 England, 

 rire-retreading form and method of construction. W. J. Shri- 



ver, Milwaukee, Wis., and C. K. Heasley, Chicago, 111. 

 \pparatus for forming composite bodies of rubber and fibrous 

 material. H. L. Boyer, assignor to Joseph Stokes Rubber 

 Co.— both of Trenton, N. J. 

 1.331,146. Tire mold. E. W. Fothergill, assignor to Hartford Rubber 



Works Co.— both of Hartford, Conn. 

 1,331,242. Tire-building machine. J. J. Convery, New York City, assignor 



to Kelly-Springfield Tire Co . Akron, O. 

 1,331,657. Machine for making pneumatic-tire covers, etc. C. Macbeth 

 and C. K. Jones, Birmingham, assignors to The Dunlop 

 Rubber Co.. Limited, Westminster, London— both in Englanci. 

 1,331,982. Vulcanizer. P. Deutscher. Indianapolis Tnd. 

 Tire-making machine. J. J " 



to Kelly-Springfield Tire 

 Stock shell for winding tire 

 332,330. Tire machine drum. W. F 

 1,332,608. Tire-building machine. J. 



to Kelly-Springfield Tire Co., Ak...... w. > .M,plication di- 

 vided.) 

 .Apparatus and method for forming inner tubes for pneumatic 

 ,,. ^ r„ , ^ . „,. ^^ .pj^^ Goodyear 



,330,958. 

 ,330,976. 



,332,109. 

 ,332,329. 



Cadiz, 



1,332,779. 

 1,332,812. 

 1,332,963. 



1,332,990. 

 1,333,047. 



C. Tyler, Racine, Wis., assigno 



Tire & Rubber Co., Akron, O. 



Apparatus and method for removing tires from 



Day, assignor to The Goodyear Tire & Rubber 



-both of 



olding plastic articles. A. Y. Tucker, Mount Ver- 

 V., and J. E. Congdon, Passaic, N. J., assignors 

 :w York Belting & Packing Co., New York City, 

 tion of application Serial No. 152,170, filed March 



Tire-bead-cutting appa 

 Wright— both of D 



Die for making pneun 

 field, O. 



G. McNeill, assignor to Morgan & 

 re trekds. E. D. Valentine. Spring- 



,333,062. Vulcani! 



Faribault, Mil 



THE DOMINION OF CANADA. 



197,358. Machine for manufacturing tire treads. G. -A. Hagstrom, Kans 

 City, and I. S. Snyder. Rosedale, assignee of '/i interest- 

 both in Kansas, U. S. A. 



197,390. Tire vulcanizing apparatus. E. Hopkinson, New York Cit 



[us for manufacturing pneumatic tires. E. Hopkinso 

 New 'Sork City, U. S. A. 

 Apparatus for manufacturing tires. E. Hopkinson, New Yoi 

 City, U. S. A. 



THE UNITED KINGDOM. 



Device for forming circumferential ribs on rods, cords, tube 

 rt. , if inl.Ini ,ts they are formed on an extruding machin 

 A \i. I :ili'. , |o (ireyhound Lane, Streatham, London. 



136,236. 

 136,301. 

 136.888. 

 130.889. 



Tire nidld. A. A. Thornton, 8 Quality Court, Chancery Lane^ 



London. (J. L. G. Dykes, 52 East 11th street, Chicago, 111., 



U. S. A.) 

 Machine for making tire covers. A. A. Thornton, 8 Quality 



Court, Chancery Lane, London. (J. L. G. Dykes, 52 East 



nth street, Chicago, HI., U. S. A.) 

 Machine for stretching, shaping, and vulcanizing tire bands. 



A. A. Thornton, 8 Quality Court, Chancery Lane, London. 



(J. L. G. Dykes, 52 Ea " 



nth street, Chi( 



U. S. A.) 



THE FRENCH REPUBUa 



Autoclave vulcanizer and dry oven combined. O. A. 1. B. 



Greuet, 4 rue Meugnicr. Maisons-Laffitte. 

 Machine to e.xhaust the air chambers of pneumatic tires. A. 



Schrader's Son, Inc. 

 Improvements in machines for calendering bases or bands of 



vulcanite for solid rubber tires. The Dunlop Rubber Co., 



.\pparatus for extracting oil from rubber and other substances 

 contained in compounds soluable in organic solvents. Fisher 

 Chemical Engineering Co., Limited. 



(July 10, 1918.) Apparatus for a machine with extensible core 

 that can be regulated, for baking pneumatic tires. Societe 



498,594. 

 499,193. 



3oly, 



iraprovemeni 

 Machine for 



machinery for constructing the covering 



The Dunlop Rubber Co., Limited. 

 ructing tires. The Goodyear Tire & Ru 



AUSTRALIA. 



8,951. Vulcan 



PROCESS PATENTS. 

 THE UNITED STATES. 



N^ 



,330,855. 

 ,332,169. 

 .332,847. 



oducing rubber gr 

 Elizabeth, assignor 



ew Jersey. 



ng pneumatic 



to J. 



vers. F. W. Farr 



■^^i^g 



Manufacture of rubber-type stamps. J. Ell 



eredge Rubber Co.— both of Chicago, HI. 

 Shaping vulcanized rubber heels. W. J. Kent, Brooklyn. X. Y 



assignor to Revere Rubber Co., Providence, R. 1. 



Northampton, 

 nor to Feath- 



THE DOMINION OF CANADA. 



:tion of 

 Canadi; 



bber soles by cutting blanks before vulcanizi 



Consolidated Rubber Co., Limited, Montr 



inee of M. H. Clark, New York City, U. S. A. 



of sponge rubber inner tires encased in fab 



The Pan-American Rubber Co., Milwaukee, assignee of A. F. 



May 



Wr 



Wr 



Ma 



in Wi 



(Se 

 page 366, for des^ 



THE UNITED KINGDOM. 



Securing rotary rubber and other heels. W. 

 Palmerston avenue, VVhalley Range, Mancheste 



